AT5G09750

Gene Details

Gene ID: AT5G09750
Gene Symbol: HEC3
Gene Name: HECATE 3
Description: basic helix-loop-helix (bHLH) DNA-binding superfamily protein;(source:Araport11)
TAIR Accession: locus:2144791
Genome: Araport11_genome_release
Species: Arabidopsis thaliana

Functional Descriptions

GO:0006355 — acts upstream of or within — regulation of DNA-templated transcription
GO:0048462 — acts upstream of or within — carpel formation
GO:0005515 — enables — protein binding
GO:0048467 — acts upstream of or within — gynoecium development
GO:0003700 — enables — DNA-binding transcription factor activity
GO:0010500 — acts upstream of or within — transmitting tissue development
GO:0005634 — located in — nucleus
GO:0046983 — enables — protein dimerization activity

hec1 hec3 — Compared with wild type, stigmas were smaller and more variable in size in hec1 hec3 mutants. There was also a slight tendency for the style to be somewhat longer in the double mutant.
hec1 hec3 — Double mutant had a sizable reduction in overall fertility (17% wild-type seed set), along with significant variations in individual fruit size and seed yield. Seed distribution was biased toward the apical half of the carpel, but substantial fertilization also occurred in the basal half.
hec1 hec3 — Mutant carpels showed significantly fewer pollen tubes and pollination events, particularly in the basal half of the gynoecium.
hec1 hec3 — The double mutant, however, had dramatically reduced Alcian Blue staining in both the style and the septum compared with wild type. In analyzing pre-fertilization stages of development, the transmitting tract of the hec1 hec3 double mutant had no delay in onset of ECM production, but produced less ECM than wild type.
hec1,2,3 — The hec1,2,3 spt quadruple mutant had an enhanced phenotype compared to the hec1,2,3 triple or spt single. Carpels were completely unfused at the apical part, up to one third of the entire fruit indicative of a synergistic interaction.
hec3 — Mutant carpels showed significantly fewer pollen tubes and pollination events, particularly in the basal half of the gynoecium.
hec3 — Mutant plants had smaller fruit and a modest reduction in fertility compared with wild type (59% of wild-type seed set). Reciprocal crosses revealed the fertility defect to be female-specific.
hec3 — The hec3 transmitting tract was smaller in size than wild type in both the septum and the style , but had the same general appearance as wild type.

Functional Keywords

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